Trinity Catholic College
Updated Oct 2026 · ACARA 2025Adamstown, New South Wales 2289 · Newcastle LGA
About Trinity Catholic College
Trinity Catholic College is a catholic high school located in Adamstown, New South Wales (2289), within the Newcastle local government area. It caters for students from 7 to 11 and in 2025 enrolled 849 students (407 girls and 442 boys). The school is affiliated with Catholic Schools NSW.
Trinity Catholic College has an ICSEA value of 1090, indicating above-average socio-educational advantage. That places it in the 81st percentile of Australian schools. 37% of students come from the top socio-educational quarter and 8% from the bottom quarter.
The school employs 81 teachers (73.2 full-time equivalent) and 27 non-teaching staff, giving a student-to-teacher ratio of about 11.6 to 1. Enrolments have fallen by 16% over the past five years.
On the Success Index, Trinity Catholic College scores 69.6 out of 100, placing it in the top 25% of secondary schools nationally and 116th of 539 secondary schools in NSW (3rd of 10 in the Newcastle area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1090
- Students in the top advantage quarter (15%)37% of students
- Teacher resourcing (students per teacher) (15%)11.6 students per teacher
- Enrolment growth vs local area (5 years) (10%)-16% enrolments since 2020 (area median 0%)
- ICSEA trend (5 years) (10%)-5 ICSEA points since 2020
The Success Index summarises the academic environment of a school community using official ACARA data. It is not a measure of teaching quality or student results. Read the methodology.
Student profile
Distribution of students across socio-educational advantage (SEA) quarters, plus community characteristics.
Enrolments by year level
How Trinity Catholic College's 849 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Trinity Catholic College have changed over the past decade.
Free academic assessment
Is your child on track at Trinity Catholic College?
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Schools near Trinity Catholic College
Closest schools by straight-line distance, with their Success Index.
New Lambton South Public School
New Lambton · Government primary · K-6
462 students · ICSEA 1095 · 717 m away
St Columba's Primary School
Adamstown · Catholic primary · K-6
168 students · ICSEA 1107 · 981 m away
Belair Public School
Adamstown · Government primary · K-6
409 students · ICSEA 1103 · 1.0 km away
Kotara High School
Adamstown · Government high school · 7-12
1,130 students · ICSEA 1066 · 1.3 km away
St Therese's Primary School
New Lambton · Catholic primary · K-6
543 students · ICSEA 1100 · 1.3 km away
Kotara School
Kotara · Government special · U
25 students · ICSEA 816 · 1.5 km away
New Lambton Public School
New Lambton · Government primary · K-6
538 students · ICSEA 1108 · 1.5 km away
Adamstown Public School
Adamstown · Government primary · K-6
439 students · ICSEA 1078 · 1.6 km away
Hunter School of Performing Arts
Broadmeadow · Government combined · K-12
1,094 students · ICSEA 1085 · 1.8 km away
St James' Primary School
Kotara South · Catholic primary · K-6
334 students · ICSEA 1104 · 1.9 km away
Similar schools
Catholic secondary schools in NSW with a comparable ICSEA.
Marist Catholic College Penshurst
Mortdale · Catholic high school · 7-12
1,343 students · ICSEA 1090
St Aloysius College Cronulla
Cronulla · Catholic high school · 7-12
482 students · ICSEA 1089
St Patrick's Marist College
Dundas · Catholic high school · 7-12
1,070 students · ICSEA 1089
St Paul's Catholic College
Manly · Catholic high school · 7-12
468 students · ICSEA 1091
Domremy Catholic College
Five Dock · Catholic high school · 7-12
858 students · ICSEA 1091
St Columba's Catholic College
Springwood · Catholic high school · 7-12
1,112 students · ICSEA 1088
Frequently asked questions
Is Trinity Catholic College a public or private school?
Trinity Catholic College is a Catholic school, which makes it a non-government (private) school affiliated with Catholic Schools NSW.
What year levels does Trinity Catholic College offer?
Trinity Catholic College offers 7 to 11. It is classified by ACARA as a secondary school.
How many students attend Trinity Catholic College?
In 2025, Trinity Catholic College had 849 enrolled students (407 girls, 442 boys), a change of -16% over five years.
What is the ICSEA of Trinity Catholic College?
Trinity Catholic College has an ICSEA (Index of Community Socio-Educational Advantage) of 1090. The national average is 1000, so this indicates above-average socio-educational advantage. ICSEA reflects the school community, not teaching quality.
How does Trinity Catholic College rank in NSW?
Trinity Catholic College ranks 116th of 539 secondary schools in New South Wales on the Success Index (69.6/100), and 297th of 1,472 nationally.
What is the student-to-teacher ratio at Trinity Catholic College?
Trinity Catholic College has about 11.6 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Trinity Catholic College?
In 2025, Trinity Catholic College had 180 students in Year 7.
Is Trinity Catholic College co-ed?
Yes. Trinity Catholic College is a co-educational school enrolling both girls and boys.
What other schools are near Trinity Catholic College?
There are 10 other schools within 15 km of Trinity Catholic College in our database. Scroll up to the "Nearby schools" section to compare them by Success Index, ICSEA and enrolments, or use the Compare tool.
Where can I get tutoring near Trinity Catholic College?
The closest Success Tutoring centre is Success Tutoring Belmont, about 11 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.